MARINE REPORT / 72 HOURS

Rarotonga Snorkel Report Today

Cook Islands · Updated Sat 09:53 (-10) · Source: Snapshot

The skinny

Marginal Data updated Sat 09:53 (-10)

Rarotonga looks marginal today. The least-bad daylight window is around Sat 12:00, but waves is limiting the forecast.

Right now (forecast)

Poor · 2.6/10

Sat 10:00 (-10)

Later today

Poor · 3.3/10

Sat 12:00 (-10)

Next three days

Fair · 3.7/10

Tue 08:00 (-10)

Model estimates using Open-Meteo; not observations or safety guarantees. Check official advisories and conditions at the beach.

Score: 3.3/10

Best time: Sat 12:00

Main risk: Waves

Best morning signal: Sat 11:00 (Poor).

Best afternoon signal: Sat 12:00 (Poor). Peak afternoon wind is about 8.1 m/s.

Email me when it is good

Sunrise

06:06

Sunset

18:42

Water

24.2°C

Max air

22.8°C

Sky

Partly cloudy

48% cloud

No good model window in the next 72 hours

Use the best-available section for the least-bad times.

3-day planner Best available Show data

3-day planner

Saturday

❌ Poor conditions

Main blocker: Waves

Sunday

❌ Poor conditions

Main blocker: Waves

Monday

❌ Poor conditions

Main blocker: Waves

Best available hours

  • Tue 08:00: Fair (0.37) · still limited by waves, wind
  • Tue 07:00: Fair (0.36) · still limited by waves, wind
  • Sat 12:00: Poor (0.33) · still limited by waves, wind

Why this verdict

Main blockers across the next 72 hours:

  • Waves (70 hours)
  • Wind (70 hours)
  • Tide/current (59 hours)

Jellyfish drift risk

Drift estimate from wind, swell, current and warm water.

Low · 34/100

Low drift risk now.

warm water supports seasonal jellyfish activity; surface drift/current is noticeable; local shoreline exposure is not mapped yet.

Sightings override the model: if you see small purple jellyfish with long trailing tentacles, treat them as sting-capable and give them space.

Upcoming high tides

Next early morning high tide: Sun 02:00

Sun 02:00, Sun 14:00, Mon 02:00, Mon 15:00

Nearby alternatives in Cook Islands

Aitutaki Lagoon

265 km away

❌ Poor

Advanced forecast data

Viewing historical data

Thu 10:00 – Sun 10:00 (-10)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.29 around Fri 07:00; 0 of 24 hours are good, fair, or excellent.

Score trend, higher is better. Excellent ≥ 0.72, good 0.55–0.72, fair 0.35–0.55.

Conditions (24h trends)

Tap a chart to load just that series.

0/24 sampled hours stay at or below 0.36m (range 2.76m to 3.16m).

Wind is at or below 5.4m/s in 0/24 sampled hours (range 7.53 to 10.98m/s).

Tides range from 0.13m to 0.87m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
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Fair ⚠️ Fair
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Scoring methodology (for technical users)

We score each hour from 0 to 1 using daylight and these weighted components:

  • Wave height (35%): best below 0.36m, then decreases as it rises.
  • Wind speed (25%): best below 5.4m/s, lower is better.
  • Sea surface temperature (15%): best within 20.6°C to 30.4°C.
  • Tide and currents (15%): best around slack/high-tide windows.
  • Daylight (10%): visibility is better in daylight, so night hours score lower.
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Thu 10:00 2.76 · high 10.30 · high 23.40 · good Poor
Thu 11:00 2.86 · high 10.96 · high 23.40 · good Poor
Thu 12:00 2.92 · high 10.72 · high 23.40 · good Poor
Thu 13:00 2.96 · high 10.54 · high 23.40 · good Poor
Thu 14:00 3.02 · high 10.98 · high 23.40 · good Poor
Thu 15:00 3.02 · high 10.54 · high 23.40 · good Poor
Thu 16:00 3.04 · high 9.89 · high 23.40 · good Poor
Thu 17:00 3.04 · high 9.54 · high 23.40 · good Poor
Thu 18:00 3.06 · high 10.12 · high 23.40 · good Poor
Thu 19:00 3.06 · high 9.67 · high 23.40 · good Poor
Thu 20:00 3.08 · high 9.24 · high 23.40 · good Poor
Thu 21:00 3.10 · high 9.28 · high 23.40 · good Poor
Thu 22:00 3.14 · high 10.09 · high 23.40 · good Poor
Thu 23:00 3.16 · high 10.04 · high 23.40 · good Poor
Fri 00:00 3.16 · high 10.49 · high 23.40 · good Poor
Fri 01:00 3.12 · high 9.86 · high 23.30 · good Poor
Fri 02:00 3.14 · high 9.49 · high 23.30 · good Poor
Fri 03:00 3.12 · high 8.93 · high 23.30 · good Poor
Fri 04:00 3.10 · high 8.61 · high 23.30 · good Poor
Fri 05:00 3.08 · high 8.37 · high 23.20 · good Poor
Fri 06:00 3.04 · high 7.82 · high 23.20 · good Poor
Fri 07:00 3.02 · high 7.53 · high 23.20 · good Poor
Fri 08:00 2.98 · high 7.71 · high 23.10 · good Poor
Fri 09:00 2.94 · high 8.49 · high 23.10 · good Poor
Fri 10:00 2.92 · high 7.36 · high 23.10 · good Poor
Fri 11:00 2.88 · high 8.50 · high 23.10 · good Poor
Fri 12:00 2.88 · high 8.89 · high 23.10 · good Poor
Fri 13:00 2.88 · high 8.46 · high 23.10 · good Poor
Fri 14:00 2.88 · high 8.60 · high 23.10 · good Poor
Fri 15:00 2.86 · high 8.47 · high 23.10 · good Poor
Fri 16:00 2.86 · high 8.17 · high 23.00 · good Poor
Fri 17:00 2.84 · high 8.24 · high 23.00 · good Poor
Fri 18:00 2.82 · high 7.27 · high 23.00 · good Poor
Fri 19:00 2.78 · high 6.83 · high 22.90 · good Poor
Fri 20:00 2.76 · high 8.65 · high 22.90 · good Poor
Fri 21:00 2.72 · high 7.66 · high 22.90 · good Poor
Fri 22:00 2.68 · high 7.71 · high 22.90 · good Poor
Fri 23:00 2.64 · high 8.00 · high 22.90 · good Poor
Sat 00:00 2.62 · high 7.35 · high 22.90 · good Poor
Sat 01:00 2.62 · high 6.95 · high 22.70 · good Poor
Sat 02:00 2.60 · high 8.34 · high 22.70 · good Poor
Sat 03:00 2.56 · high 8.28 · high 22.70 · good Poor
Sat 04:00 2.54 · high 7.85 · high 22.70 · good Poor
Sat 05:00 2.50 · high 7.70 · high 22.70 · good Poor
Sat 06:00 2.62 · high 8.27 · high 22.60 · good Poor
Sat 07:00 2.58 · high 8.53 · high 22.60 · good Poor
Sat 08:00 2.54 · high 8.71 · high 22.60 · good Poor
Sat 09:00 2.52 · high 8.69 · high 22.60 · good Poor
Sat 10:00 2.48 · high 8.37 · high 22.70 · good Poor
Sat 11:00 2.46 · high 9.03 · high 22.70 · good Poor
Sat 12:00 2.44 · high 9.50 · high 22.70 · good Poor
Sat 13:00 2.42 · high 9.16 · high 22.80 · good Poor
Sat 14:00 2.40 · high 8.59 · high 22.80 · good Poor
Sat 15:00 2.40 · high 8.46 · high 22.80 · good Poor
Sat 16:00 2.40 · high 8.73 · high 22.80 · good Poor
Sat 17:00 2.40 · high 8.87 · high 22.80 · good Poor
Sat 18:00 2.40 · high 8.22 · high 22.70 · good Poor
Sat 19:00 2.40 · high 8.27 · high 22.70 · good Poor
Sat 20:00 2.40 · high 6.91 · high 22.70 · good Poor
Sat 21:00 2.40 · high 6.61 · high 22.70 · good Poor
Sat 22:00 2.40 · high 6.69 · high 22.70 · good Poor
Sat 23:00 2.40 · high 6.14 · high 22.70 · good Poor
Sun 00:00 2.40 · high 5.95 · high 22.70 · good Poor
Sun 01:00 2.20 · high 5.35 · good 24.10 · good Poor
Sun 02:00 2.18 · high 6.23 · high 24.10 · good Poor
Sun 03:00 2.16 · high 6.79 · high 24.10 · good Poor
Sun 04:00 2.16 · high 6.61 · high 24.10 · good Poor
Sun 05:00 2.14 · high 6.16 · high 24.10 · good Poor
Sun 06:00 2.12 · high 5.62 · high 24.00 · good Poor
Sun 07:00 2.12 · high 4.86 · good 24.00 · good Fair
Sun 08:00 2.18 · high 6.79 · high 24.00 · good Poor
Sun 09:00 2.18 · high 7.22 · high 24.00 · good Poor